Configuring MTU Size in Label Switching
Router(config)# interface fasthethernet 0/0 |
Moves to interface configuration mode |
Router(config-if)# mpls mtu 1512 |
Changes the maximum size of an MPLS-labeled packet to 1512 bytes NOTE: The mpls mtu command is an optional command when working with MPLS. But because of the addition of the label header, the MTU on LAN interfaces should be increased to prevent IP fragmentation. NOTE: The minimum MTU is 64 bytes. The maximum MTU depends on the type of interface medium that is being used. |